holcomb



(No Model.) 5 2 sheets-sheet 1. A'. P. HOLOMB 8v AL REINE.

GBNTRIPUGAL FLOUR BGLT.

No. 280,822. Patented July 8, 1888.`

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2 Sheets-Sheet 2.

Patented July 3, 1883,;

GENTRIFUGAL FLOUR BOLT.

A. P. HOLO'MB 8U A. REINE.

(No Model.)

WZneife'.

N. PETERS. Phokrlxihogmulvef. Walhmgterl. D. C.

UNITED STATES PATENT Clinics.

ABEL P. HOLCOMB AND AUGUST HEINE, OF SILVER CREEK, NEW YORK.

CENTRIFUGAL FLOUR-BOLT. v

SPEGIFICATION forming part of Letters Patent No. 280,622, dated July 3, 1883.

To aZZ whom t may concern: i

Be it known that we, ABEL P. HOLCOMB and AUGUST HEINE, of Silver Creek, in the county of Chautauqua and State of New York, have invented new and useful Improvements in Centrifugal Flour-Bolts, of which the following is a specification.

This invention relates to certain improvements in that class of bolting-machines generally known as centrifugal bolts, which are providedwith a rotating cylinder and rotating beaters arranged within the cylinder, whereby the material to be bolted is driven against all parts ofthe cylindrical bolting-surface.

Our invention has the object to improve the operation of this class of machines; and our invention consists of the improvements which are hereinafter more fully described, and pointed out in the claims.

This invention relates to certain improvements which were described and shown in our former Letters Patent, No. 271, 846, dated February 6, 1883, but not specifically claimed therein.

ln the accompanying drawings, consisting of two sheets, Figure l is a longitudinal sectional elevation of our improved bolting-machine. Fig.'2 is an elevation of the front end of the machine, with the feed mechanism in section. Fig. 3 is an elevation of the rear Iend of the machine. Fig. 4L is a cross-section of the machine, looking rearward. Fig. 5 is a c cross-section in line x x, Fig. 1. Fig. 6 is an enlarged longitudinal section of the feed end of the bolting-cylinder, Fig. 7 is a cross-section in line g/ y, Fig. l. Fig. 8 is a front elevation of the disintegratinghead arranged within the bolting-cylinder.

Like letters of reference refer to like parts in the several figures.

A represents the frame of the machine, and A the inclosing-casing, which is made air tight as nearly as practicable.

B represents the bolting-cylinder, which is composed of two heads, D D, connected by stay-bolts, rods, vor bars d, and which is covered withbolting-cloth b, of suitable mesh, supported by suitable rings, d. The head D of the feed end of the bolting-cylinder is provided with a hollow journal, e, which turns in Application filed January 17, 1883. (No model.)

a bearing, e, secured tothe frame A, and the head D', at the tail end of the bolting-cylinder, is provided with a similar hollow journal, c, which turns in a bearing, cf.

f represents the rotating beaters, which are arranged in the bolting-cylinder and secured to rings f. The latter are attached by arms f 2 to a shaft, f, which passes through the hollow journals e e2, and is supported in bearings The cylinder B is slightly inclined from the head D toward the head D, to cause the material to pass slowly through the cylinder; or the beaters f may be arranged spirally to propel the material through the cylinder in the proper direction; or both means may be employed together to impart the necessary movement to the material.

g represents a rotating spiral brush, which is arranged transversely at the head of the machine, and g is the trough in which the brush rotates, and which is constructed of wire-cloth or perforated metal, having openings which permit the passage of the material to be bolted, but retain all larger impurities, such as dough-balls, nails, stones, Src. The latter pass through an opening, g2, at the end of the perforated trough into a receptacle, G, which is provided with suitable slides, through .which the accumulated material can be removed from time to time.

g represents the feed-spout, through which the material to be bolted is introduced into the trough g.

i represents a screw-conveyer arranged underneath the perforated trough g', and t is the trough of the conveyer i, which receives all the iine material which has passed through the openings of the perforated conveyer-trough g. The conveyer 1i delivers the fine material to the feed-spout The spiral brush serves to disintegrate the material and forces the fine particles through the perforations of the trough g into the trough i below, while it conveys the coarse substances to the discharge-oriiice without injury to the clothing of the perforated trough. The feed-spout i discharges the material into a conical hood, J, which is secured with its large end to the outer side of the head D, so as to turn with the cylinder B, and which IOO turns with its small end on a iixed collar or short sleeve, j, which is secured to the adjacent portion of the easing A. The hood .l is titted so snugly' on the eollarj that but little air can leak into the cylinder B through. this joint, and, ii' desired, this joint may be further protected by a ring of india-rubber or leather.

The head D is composed of au annular plate, f, having a marginal iiangc, 1.1, to which the ticking ol' the bolting-cloth is secured. This plate l: is provided with a central ci rcular opening, It. On the outer side ol' the plate 7s are formed radial ribs or arms 7.1, which have their outer ends beveled to iit against the inner side of the head J, and which extend inwardly across the central opening, 7:2, to a curved or conical deilector, L, which surrounds the inner en d of the journal c, and projects with its small end into the opening 7;. The plate 7.', ribs k", deflector L, and journal c are preferably east in one piece. The defleetor L does not extend to the hood J, so that an annular opening, I, is formed between the edge ot' the deiieetor and the hood. The material delivered into the hood .T bythe spout t slides through the annular opening Z against the outer side ot' the plate 7c and is picked up by the ribs k, and elevated by the same until the ribs in rotating assume an inclination, which causes the material resting on the same to slide oit', when the material strikes against the inner side of the deiiector L, and thereby deilected through the central opening, Lt, into the bolting-eylinder B.

l is a disk or circular plate secured to the sha'ltf, near the inner side ot' the opening` 7.55, and provided with one or more circula-r rows ol" pins or beaters, l, arranged opposite the edge ot' the leed-opening lr. The material cntering the bolting-reel through the opening ki strikes against the rotating disk Z', near its center, and is driven outwardly by the centrifugal force between the rotating pins l, which disintegrate the material and distribute the same in a spray over the inner surlace ofthe' surrounding portion ot' the bolti 11g-cylinder.

In passing through the cylinder B from the head D to the head D the material is thrown by the beaters f against the bolting-cloth of the cylinder B, and thereby separated, the tlour or line and heavy material passing through the meshes ot' the bolting-eloth into the surrounding inclosed space, while the lighter' particles remain in the bolting-cylinder and inally arrive at the head D. The latter is provided on its inner side with radial ribs in, and with a central discharge-opening, m', which is surrounded by a short collar, mf, extending rearwardly.

mi* is a curved or conical deileetor, having its convex side turned rearwardly and conneeted with the inner ends ci" the ribs m andA the inner end ot` the journal ci. The material which reaches the inner side of the head 1) is lilled by the ribs n1 until the increasing inelisha-lt, at, and an endless belt, s".

nation otl the ribs causes the material to slide oil, when it strikes the convex side oi' the deilector m, and is thereby deilected rearwardly and discharged through the opening m into a receptacle, M. The latter is arranged between the head 1)/ and the rear wall oi' the casing A', and projects with its lower end through said easing. This receptacle is provided with two automatic discharge-valves, a a', which, prevent the entrance oi' the external air, and which open at diilerent times under the pressure of the accumulated material and permit the discharge of the material. without admitting air to the cylinder B.

lt is very important to avoid the admission ol' air to the cylinder, as the jvn'esenee el' aircurrents interferes with the operation ol' bolting; and it is especially important to avoid the admission of air at the tail end ot' the c vlinder, because ingoing currents ol' air would carry back into the cylinder the light iloating bran-specks, which would result in rendering the iiour specky.

O represents an opening formed inthe headboard ofthe casing A, within the eollarj, i'or the purpose of admitting air to the head ofthe bolt when required. The opening O is pro'- vided with a slide, o, whereby it may be entirely closed, ii' desired', or its size may be regulated and the ingoing air-currents controlled. By admitting air at the head of thebolt the air passes through the bolt from the head toward the tail, and the return ofthe specks from the tail portion of the bolt toward the head is thereby prevented.

P P represent two screw conveyors arranged below the bolting-cylinder B, one above the other, and provided in their troughs with a suitable number ot' openings controlled by slides p, so that the bolted material can be drawn oitl at any desired point.

q represents the driving-pulley, secured to the end o'l'the shal'tf, and g isan endless belt which runs around a small pulley, qu, on the shat'tf 1, and a larger pulley, qf, on the shaft ol' the lower conveyor, l, whereby the latter is rotated.

r represents an endless belt which runs around asmall pulley, r, on the shalt oi' the lower conveyer, P, and a larger pulley, ri, on the hollow journal d, whereby the cylinder B is rotated i'rom the convcyerBwith much less speed than the beaters. The upper eonveyer, l), is driven from the lower conveyor, Bf, by gear-wheels s .5, and the conveyer t' is driven from the conveyer P by means of a counter- The spiral brush G- is driven from the conveyer i by gearwheels s* s".

T T represent adjustable transverse parti,- tions arranged in the hopper or lower portion ot' the casing, above the conveyer l?, i'or the purpose ot' more perfectly sej'iarating the dii'- t'erent grades oi' material which are bolted through the bolting-cloth. These partitions are provided with rods t t, which extend ITO through one of the end walls of the casing, and l rotates, and means whereby the fine material whereby the partitions can be adjusted.

U represents a blast-fan, which is actuated by a belt, u, from the beater-shaft f3.

u/ represents the blast-pipe of the fan, arranged parallel with the side of the cylinder B, in close proximity therewith, and provided on the side adjacent to the cylinder with perforations, whereby the air which is driven into the pipe by the blast-fan is delivered in jets upon the surface of the bolting-cylinder, whereby the meshes of the latter are freed from any material which may tend to adhere to the same. The distance between the cylindrical surface of the bolt and the perforated air-pipe remains the `same during the revolutions of the bolt, and the air-blast operates, therefore, uniformly upon all parts of the bolting-cloth. The bolting-cloth is applied to the bolting-cylinder in two cylindrical sections, which may each be composed, if desired, of one or more different grades of cloth. f

We claim as our invention- 1. The combination, with a flour-bolt composed of a revolving bolting-cylinder and revolving beaters arranged within such cylinder, of a preliminary disintegrating and separating mechanism composed of a spiral brush and a perforated trough in which the brush which is driven through the perforations of the casing is conducted into the flour-bolt and the coarse material excluded from the fiour- `bolt and discharged separately, substantially as set forth. v

2. The combination, with a revolving bolting-cylinder, B, and revolving beaters f, of a head, D,` arranged at the feed end of the bolting cylinder, and provided with a central opening, k2, ribs 70"', and a deiiector, L, whereby the material is fed into the bolt at or near y its axis, a hood, J, and a collar, j, substantially as set forth.

3. The combination, with a rotating boltingcylinder and rotating beaters, of a feed device consisting of a head, D, provided with a central opening, k2, ribs 7c3, a deflector, L, and hood J, whereby the material is fed into the bolt near its axis, and a discharge device consisting of a head, D', having a central opening, m-'rib's m, and a deflector, m, whereby the coarse residue is discharged from the bolt, substantially 4as set forth.

" ABEL P. HOLCOMB.

AUG. HEINE.

Vitnesses:

J. l). MERRITT, Gno. V. BARBOUR. 

